Improvement in draft-cocks for soda-fountain



w. P.`CLARK. Draft-Cock for Suda-Fountains.. l

No; 138,615. Patented may a, i

AM pHoro-Limasmrmc ca Mx (ossonye's nmcsss.)

February 27, 1873.

To all whom it may concern:

Be it known that I, WILLIAM P. CLARK, of Medford, in the county of Middlesex and State' of Massachusetts, have invented an Improved Draft-Gock for Soda-Water Apparatus; and I do hereby declare that the following, taken in connection with the drawing which accompanies and forms part of this specification is a description of my invention sufficient to enable those skilled in theart to practice it.

The invention relates particularly to the construction of that class ot' draft-cocks for sodawater apparatus in which the gas-charged Water is drawn in two streams from the nozzle, one stream having the full force of the pressure from the fountain and the force of the other stream being broken before it flows from the nozzle. The invention consists .in details of construction and arrangement of the parts, which details will be clearly understood by the description, without generalization of the invention. Y

The drawing represents a draft-cock mechanism embodying `my invention.

Figurel shows a sectional elevation of the mechanism. Fig.2 is a cross-section on the line x x. Fig. 3 is a top view, and Fig. 4 a bottom view, of the piece through which the eductionpassages lead. 'Fig 5 is an end view of the -mechanism upon which the coupling-nut is hung. Fig. 6 is a bot-tom View of the valveplug x2.

a denotes the main body of the cock; b, the armto the end of which it is Xed, this arm being tubular, or containing the continuation c of the tube that extends from the fountain. Connection of the arm b and body a and of the tubes or passages within them is effected as follows: The arm b has at its end a screw` thread, d, and beyond said thread a ring or flange, e, the end face of which abuts against the end face of a coupling-neck, j, extending from the body a, a packing-ring or Washer, j', being interposed to form an impervious joint, and the parts being connected and held together by a screw-coupling ring, g. To prevent any sediment or foreign matters from being carried into the cockfrom the fountain the arm bis made with a chamber, h, and the neck j with a chamber, fi, and across the front of the chamber i is a strainer, k, the charged Water passing into the chamber t', and, b the strainer la, being cleared from al ters before passing into the cha a upon the arm and to set the cocl correct vertical position without necessit `of adjustment or of especial skill, the neel sets directly into a correspondiny-shaped socket, m, in the end of the arm b.

It is often desirable to remove tl1 cock from connection with the arm for repair ;or inspection, and for this purpose the di onection has always been effected at the untain or back of the arm, or the arm itself l1 `s been removed. To obviate this I extend a y 1 threaded valve-plug, m2, the bott` m face of which, when the plug is screwed d 1n, covers a valve-seat, o, and a passage leadi g through said sea-t :into the fountaintube, tion of the cock with the fountain Q `ube being made through this valve-seat, by 1 aising the valve, and an outlet-passage, p, le ding from the valve-chamber. By closing th lvalve this communication is shut off, and th ldraft-cock may then be detached from the a disturbance of any connection b arm and the fountain, or at the fou valve is faced with a leather or si ilar packing, q, to make the valve-joint impe lious; and to prevent rotation of this packin it is made square or of angular shape, and is ressed into a socket, r, of corresponding hape, the angles holding the packing firmly l position.

The socket may also be made sin lest at its using a packing larger than the n socket and bending it to force it in et it Will be fastened so that it n 1nth ofthe n the sockonly cannot turn, but cannot be dislodged except by v removing the valve and prying it l ut.

In the body a, is a central cham ler, z2, into which the neck-passage y2 leads. l ber z2 extends down to a disk or v ive-seat, s, from and through which lead two outlet-passages, t u, this valve-seat being u y of a screw, t2, which screws up l threaded flange, u2, at the lower end of the body a, the screw having a square or angular recess, v, formed like the recess r, and containing a leather or similar seat or packing, fw, which is kept from turning by its form, and the form of the recess, and from dislodgment by the enlargement of the recess from the mouth or under-cuts extending therefrom and the expansion of the packing to ll the same. Through this screw and packing pass the outlet-passages t u, the passage t passing directly through the screw and a square or rectangular head, w, projecting therefrom, and a delivery-tube, y, the tube y being bent to bring its point of delivery to the center of the cock, and the passage t being direct, except as to'such bends. A nozzle, z, forms a chamber for the delivery-orifices, and especially for the delivery from the other passage u, this nozzle being connected to the screw t2 by a nut-thread at the top of the'nozzle and the thread of the screw. The passage u leads straight down through the screw t2 and head x and into auinwardly-turned arm, a2, and thence out through an orifice, b2, at the top of said arm, the charged water striking with the full force of the pressure against the bottom surface of the head x, but being deflected into and through the nozzle-chamber, so that it `falls from the nozzle deprived of its force, the water passing through the passage t escaping with the full force of the pressure. The arrangement of these passages is particularly seen in Figs. 1, 3, and 4. Entrance to the respective passages is controlled by a valve, c2. This valve has a square stem, d2, extending through a square hole in a coupling, e2, and it is forced against the valveseat by a spring, f2. The coupling is jointed to a spindle, g2, by a compound joint, h2, and overa flange, 2, at the foot of this spindle, is a washer, 7a2. The valve-coupling, spring, flange, and washer are located in the chamber, and the spindle g2 extends from the same chamber through a neck, l2, the washer being forced against a seat, o2, to pack the chamber with reference to the neck. The top of the spindle is forked, and into the top of the neck extends a hollow spindle, m2, forming part rof the hand-wheel a2, by which the cock is operated. The tubular spindle encompasses the top of the spindle g2, and through the tube and the spindle-fork extends a pin, o2, that connects the two spindles, so that, by turning the hand-wheel, the valvespindle g2 and its valve ce will be turned. Through the valve c2 is a single passage, p2, and when the valve is so turned as to bring this passage 102 into connection with the passage t the aerated water will flow through the passage t and escape into the goblet held beneath the nozzle-tube y with the full force of the fountain-pressure, while, by turning the valve to bring its passage p2 into connection the other outlet-passage u, the force of the charged water will be broken, as before described.

It will thus be seen that the passages t u are never opened together, separate manipulations of the hand-wheel being necessary to connect the respective passages t u with the valve-passage p2. By turning the wheel slightly from a position connecting either passage t u with thev passage p2 the valve will coverboth passages t u, and the cock will be closed.

For the movement of the spindle to connect the respective passages, the connectingpin o2 may extend through a slot, g2, at the opposite ends of which are stops r2, that arrest the movement of the spindle. But, as it is desirable to have the delivery of the streams made adjustable, I apply to each stop r2 a set-screw, s, the end of which may be so adjusted in position as to vary the extent of the valve-passage p2 brought into connection with either passage t u.

The delivery-nozzles of soda-water draftcocks rapidly oxidize, and by such oxidation, and the frequent cleaning of such nozzles, any metallic coating is soon worn from them. To obviate this deterioration, I form the nozzle of hard rubber or similar material, screwthreading the upper end to connect it with the screw upon the metal cock above it, such formation eifecting'a perfect safeguard against oxidation, and furnishing a nozzle that is readily kept clean,

I claim- 1. In combination with the valve c2 having the single passage p2, the valve-seat having the two passages t u, the passage t leading into the arm w2 and thence into and through the tube y, and the passage u leadying into the arm a2 and-from the top of said arm, substantially as shown and described.

2. The combination of the valve-coupling e2, spring f2, and joint h2, and the spindle g2 and valve c2, combined and relatively arranged, substantially as shown and described.

3. In combination with vthe valve c2, the forked spindle g2, tubular spindle m2, and connecting-pin o2, substantially as shown and described.

4. In combination with the spindles m2 g2, the slot q2, stop-pin o2, and stops r2, substantially as shown and described.

5. In combination with the stop-pin o2, the adjustable stops or screws s2, arranged substantially as shown and described.

6. In lcombination with the arm b, the chambers h 1I and strainer k, substantially as shown and described. l

7. In combination with the arm b and draftcock, the shut-off or disconnecting valve x2, arranged substantially as shown and described.

WILLIAM I. CLARK.

Witnesses:

FRANCIS GoULD, M. W. FROTHINGHAM. 

